Most of the light rays inside a tube -light is in the form of
A wrong decision about Ho leads to
The idea of testing of hypothesis was first set forth by
Cramer-Rao inequality with regard to the variance of an estimator provides
The credit of inventing the method of moments for estimating the parameter goes to
If the expected value of an estimator is not equal to its parametric function τ(Θ) , it is said to be a